Zero-moment swivel nozzle



Mmdm 2 E950 D. c. WARREN ZERO-MOMENT SWIVEL NOZZLE Filed May ll, 1948 Hmm NH m N A m ww n c. ,A

.HH f llll I w me iatented Mar. 2l, 195C ZERO -MOMEN T SWIVEL N OZZLEDoyle C. Warren, Monrovia, Calif., assignor to Chiksan Company, Brea,Calif., a corporation of California Application May 11, 1948, Serial No. 26,2,65

2 Claims.

This invention relates to apparatus for delivering a high pressure jet,and it is a general object of the invention to provide a simple,practical and easily operated structure for handling uid and operable todeliver such :duid in a jet or stream.

The apparatus of the present invention can be used generally where uidis to be delivered from a nozzle at high pressure or in the form of ajet. For purpose of example the apparatus will be referred to as beingused in connection with the mixing or agitation of material and in asituation where a high pressure jet of iiuid is delivered with the Viewof causing agitation or mixing of a body of material, such as mud, orthe like. A mud mixing operation usch as is referred to is generallyrequired in connection with the drilling of wells when such wells aredrilled by the rotary method and mud laden fluid is employed in thecourse of drilling.

A general object of the present invention is to provide apparatus of thegeneral character referred to effective to handle a substantial quantityof liquid at high velocity without disagreeable reaction such asgenerally results from the delivery of fluid from a nozzle. With theapparatus of the present invention the nozzle from which the duid isdelivered is subject to being manipulated into any desired position andcan be freely moved at will without the reaction resulting from the jetissuing from the nozzle interfering with the free manipulation of thenozzle.

A further object of the present invention is to provide apparatus of thegeneral character referred to including a head supporting a nozzlethrough a neck in such manner as to enable the nozzle supporting neck tobe moved in any desired direction, which vhead involves few simple partsand is freely operable.

The various objects and features of my invention will be fullyunderstood from the following detailed description of a typicalpreferred form and application of the invention, throughout whichdescription reference is made to the accompanying drawings, in which:

Fig. 1 is a side elevation of a typical embodiment of the presentinvention, showing it applied to a hoizontally disposed supply pipe.Fig. 2 is an enlarged detailed sectional view taken as indicated by line2-2 on Fig. l. Fig. 3 is a sectional view taken as indicated by line 3-3on Fig. 2. Fig. 4 is an enlarged detailed sectional view taken asindicated by line -ll on Fig. l.

Fig. 5 is an enlarged detailed sectional view taken 55 as indicated byline Y5---5 on Fig. 1 showing the lock means engaged or set, and Fig. 6is a View similar to Fig. 5 showing the lock means released ordisengaged.

The apparatus provided by the present invention is intended lforapplication to a supply line or pipe P delivering fluid under thedesired head or pressure, and it involves, generally, a swivel head, aneck A projecting from the head, a nozzle B at the outer end of the neckand a handle C projecting from the head to be convenient for theoperator.

The head as provided by the present invention involves, generally, astraight tubular base secn tion D, an outer or neck section E, and amiddle or intermediate section F. The head further involves means Gcoupling the inner end lli of the middle section F with the outer end Hof the vbase section, means H connecting the inner end l2 `of the necksection with the outer end i3 of the middle section, lock means Jengageable to set middle section against movement relative to the basesection, and lock means K operable to set the neck section againstmovement relative to the middle section F.

The base section D of the head is a simple, straight, tubular part withits inner end I4 adapted to be connected to the supply pipe P While itsouter end Il is coupled to the middle section F by the means G. In thecase illustrated the end portion i4 of section D is internally threadedand the end of pipe P is threaded into the section D, as clearly shownin Fig. 3 of the drawings.

The middle section F of the head is a tubular L-shaped member having itsinner end portion lil extending at right angles to its outer end portionI3. The inner end portion lli is connected or coupled to the basesection D through the means G. In the case illustrated the end portionsil! and Il of sections F and D, respectively, are telescopically relatedor engaged one inside the other, the end portions I l being shownengaged in the end portion l0.

The means G coupling sections F and D connects the sections for freemovement or rotation of the section F on the section D about an axiscoincidental with the longitudinal axis of the section D. The particularmeans G illustrated in the drawings involves a plurality of balls i5carried in registering grooves I6 in the overlapped portion of thesections F and D. The balls are adapted to be arranged in place throughan access opening ll normally closed by plug I8 and in practicelubricant is supplied to the balls through a suitable lubricant fittingI9.

In the preferred form of the invention sealing means are provided toprevent leakage between sections F and D. In the case illustrated asealing ring '25 is shown engaged between the end of section D and theopening in section F, which receives section D. A second sealing ring 26may be provided between the sections F and D to prevent lubricant fromescaping from the coupling balls I5 and also to prevent foreign matterfrom entering between the sections F and D to interfere with properoperation of the balls.

The inner end I2 of the neck section E is joined with the outer end I3of the middle section F and in the case illustrated the end portion I2is engaged in the end portion I3. The means H couples the sections E andF so that section E is freely rotatable relative to section F about thelongitudinal axis of the end portion I3 of the section F, which axis isat right angles to and intersects the axis of the inner end portion I ofsection F.

The means H may correspond in form and construction with the means G, inwhich case it involves balls 30 operating in grooves 3l and arranged inplace through an access opening 32 normally closed by a plug 33. Theballs are supplied with lubricant through a tting 34. A sealing ring 35prevents escape of fluid from between sections E and F and a secondsealing ring 36 acts between the sections E and F to prevent lubricantfrom escaping from between the sections and to prevent foreign matterfrom entering between the sections.

The neck section E of the head is a tubular I -shaped member with anouter end portion 40 extending at right angles to the inner end portionI2 which is coupled to the middle section F.

From the foregoing description it will be apparent that the headinvolving the three sections D, E and F is such as to enable the outletor outer end 4I] of section E to be laced in various directions sincethe middle section F is freely rotatable about the axis of the basesection while the neck section is freely rotatable about the axis onwhich the sections E and F are joined, which latter axis is at rightangles to that rst mentioned.

The lock means K is provided to act between sections E and F and whenengaged locks these sections against relative rotation. In the form ofthe invention illustrated the means K involves a lock plate or flange 50on the neck section 43 immediately beyond or adjacent the outer end ofthe end portion I3 of section F, and a lock pin I carried by section Fto cooperate with the plate. The pin is shown carried by section F tocooperate with openings 5I provided in the plate 5U.

The plate or flange 50 is an annular part extending completely aroundthe portion I2 of section E and the openings 52 in the plate 59 are inan annular series concentric with the axis of the end part I2 of sectionE.

The pin 5I is slidably mounted on the exterior of the end portion I3 ofsection F to extend parallel with the axis of end portions I2 and I3 andto be so located as to enter into or register with the openings 52, oneat a time, depending upon the position of section E relative to sectionF.

The particular structure shown in the drawings involves a pin carryingbracket 53 fixed on the exterior of the end portion I3 of section F asby welding W. The bracket 53 has spaced 4 lugs 54 and 55 with alignedopenings 56 in which the pin 5I is slidably carried. A helicalcompression spring 51 is arranged on the pin 5I between the lugs orbetween lug 55 and an abutment pin 58 on pin 5I so that the springnormally yieldingly urges pin 5I toward the plate 50.

The pin 5I projects beyond lug 55 where it has a loop-shaped portion Bilforming a handle easily enga-ged by an operator. The bracket 53 isprovided with a rest or shoulder BI suitably spaced from lug 55 andadapted to be engaged by the projecting handle portion 60 of pin 5I whenthe pin is rotated to the position shown in Fig. 6 of the drawings.Further, the bracket 53 has a flat side or shoulder 63 against which thehandle portion 63 is located when the lock means is engaged as shown inFig. 5. The shoulder or face 63 holds the pin 53 against rotation andmaintains the handle portion 60 in a position where it does not projectradially from the side of the head section F.

When it is desired to hold the lock means K fully released or disengagedor to leave it in such condition the pin 5I is withdrawn from plate 5I]against the resistance of spring 51 and is then rotated to engage thehead or handle 6U of the pin on the shoulder 8 I, as shown in Fig. 6,where it will remain until deliberately rotated in a manner to releaseit for movement to the position shown in Fig. 5.

The lock means J acting to lock section F against rotation relative tosection D may correspond in construction to the lock means K abovedescribed, in which case the plate 50 is fixed on head section D whilethe lock pin is carried by the head section F. The general arrangementand relationship of the lock means J and K will be readily understoodfrom Fig. l of the drawings.

The neck A of the structure is an elongate tubular part characterized byan inner end portion 'I0 joined to and parallel with the outer end d ofthe head section E, an outer end portion 'I I, the axis of whichintersects the point at which the axis of section D intersects the axisof the portions I2 and I3 of sections E and F, respectively, With theresult that when the structure is in operation the reactionary forcegenerated by fluid leaving the nozzle B on the end portion 'II of theneck has little or no tendency to operate sections of the head relativeto each other, either the section E relative to section F or thesections E and F relative to section D.

The nozzle B on the outer end 'II of the neck may be of any suitableform or construction and it may vary in size and shape depending uponthe character of work to be performed. In the case illustrated thenozzle is shown as involving an outwardly convergent body 36 tubular inform and coupled to the end of neck part II by a coupling 8| so thatfluid passed by the neck flows therethrough and issues therefrom in asuitable stream or jet. In the particular case illustrated the neck A isone continuous length of tubing, or the like, suitably shaped or bentand it is permanently joined to the end portion Il of section E bywelding 83.

The handle C is provided on or projects from the section E of the headand is preferably located so that it extends parallel with the endportion 40 of section E. In the particular case illustrated the handleis an elongate bar joined to section E through a suitable boss 85, theparts being related so that the neck A extends in one direction fromsection E while the handle C extends in the opposite directiontherefrom. By thus locating the handle and by making it of suitablelength it provides a part that can be very easily handled and whichmakes it convenient for an operator to direct or face the nozzle in thedesired manner.

From the foregoing description it will be apparent that the presentinvention provides a head construction which may be applied to a supplypipe P whether the pipe be horizontally disposed, as shown in thedrawings, or vertically disposed, and that the head is such as to enablean operator to manipulate the neck and consequently the nozzle into anydesired position. The means G and H incorporated in the head make forfree smooth operation of the head and the head construction involvingbut three main sections D, E and F related as shown in Fig. 3, providesa continuous smooth ow passage between the pipe P and the neck A. Itwill be apparent how the lock means J and K may be utilized when desiredto set parts of the head against relative movement so that the operationof the neck and nozzle may be limited or set, as circumstances mayrequire.

Having described only a typical preferred form and application of myinvention, I do not Wish to be limited or restricted to the specicdetails herein set forth, but wish to reserve to myself any variationsor modications that may appear to those skilled in the art and fallwithin the scope of the following claims:

Having described my invention, I claim:

1. In combination, a nozzle, a neck carrying the nozzle, and a swivelhead carrying the neck, the head including a base section, an L-shapedmiddle section having its inner end joined to the outer end of the basesection to rotate relative thereto, and an L-shaped neck section havingits inner end joined to the outer end of the middle section to rotaterelative thereto, the axis on which the base and middle sections arejoined being normal to the axis on which the middle and neck sectionsare joined, the neck having its inner end portion joined to andprojecting from the outer end of the neck section and having an outerportioncarrying the nozzle and laterally offset from the inner endportion With, the axis of said outer portion intersecting the point ofintersection of the said axes of the head.

2. In combination, a nozzle, a neck carrying the nozzle, and a swivelhead carrying the neck, the head including a base section, an L-shapedmiddle section, anti-friction means rotatably joining the inner end ofthe middle section with the outer end of the base section, an L-shapedneck section, and antifriction means rotatably joining the inner end ofthe neck section with the outer end of the middle section on an axisintersecting and normal to the axis of the rst mentioned means, the neckhaving its inner end portion joined to and projecting from the outer endof the neck section and having an outer portion carrying the nozzle andlaterally oiset from the inner end portion with, the axis of said outerportion intersecting the point of intersection of the said axes of thehead.

DOYLE C. WARREN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,085,973 Conkling Feb. 3, 19141,984,360 Corley Dec. 18, 1934 2,227,779 Grant Jan. 7, 1941 2,267,194Drill Dec. 23, 1941 2,388,841 Goodwin Nov. 13, 1945 2,451,269 Allen etal. Oct. 12, 1948

